It's a 1995 E300D, not that it should matter for this one. The clock stops at times, often for hours at time, but:

It seems to keep good time with the engine off, but stops intermittently when the engine is running.

I've changed the fuse and checked the contacts which is about the only thing I can think of.

Any suggestions out there?

__________________
1960 190D (college car), gone
1995 E300D, 325 k
2019 LEXUS UX 250h (spouse mobile)
2003 Nissan Frontier Crew Cab
2007 Jeep Grand Cherokee Overland 3.0L MB diesel, 185K
1978 GMC Classic Motor Home